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  • TASC Force Tips: Converter Clutch Control Part 2
    Friday, May 31, 2019 12:00 AM
    Bob Warnke follows up his discussion of converter clutch control from the April issue.
  • No Forward Good Reverse - A Leave Out or a Blow Out
    Friday, May 31, 2019 12:00 AM
    Wayne Colonna discusses the UNIGEAR output shaft assembly.
  • Lubegard: To Flush Or Not To Flush
    Friday, May 31, 2019 12:00 AM
    One of the major issues that often gets overlooked when removing and replacing an automatic or CVT transmission is the removal of contaminated or old transmission fluid from the transmission cooler and lines.
  • R&R Tech: Shaking Loose
    Friday, May 31, 2019 12:00 AM
    Chris Adams attempts to save a 2015 Ram Promaster after the left transmission mount bracket and transmission case are broken.
  • Voltage Drops
    Friday, May 31, 2019 12:00 AM
    Bernie Thompson explains voltage, and the importance of electrical savvy when diagnosing automotive problems.
  • Souza Sezz: U880E First 8-Speed Front Wheel Drive of It’s Kind
    Friday, May 31, 2019 12:00 AM
    Mike Souza explains the ins and outs of the Aisin front-wheel-drive, eight-speed transmission.
  • Technically Speaking: Spring Season
    Wednesday, May 1, 2019 12:00 AM
    A 2006 FORD Explorer with a 4.0 engine using the 5R55W/S type transmission came back to Jeremy at Warren Transmissions 8 months after the original rebuild. The customer stated that all was good prior to climbing a hill when it felt like he was losing power and the engine began to rev quite high like the trans was slipping. Customer said he managed to nurse it home.
  • Wednesday, May 1, 2019 12:00 AM
    Jon at Wilson Transmissions received a 2010 Venza with a 3.5L/U660E combo from a used car lot. All seemed to be working good other than many dash indicators lit up. After scanning the vehicle and finding pressure switch codes (P0872 for TFP Sensor/Switch C and P0877 for TFP Sensor/Switch D), Jon ordered a TFP switch/TFT sensor assembly from the Toyota dealer.
  • R & R Tech: Spiking Speedometer
    Wednesday, May 1, 2019 12:00 AM
    A customer showed up at our shop with a 2008 Chevrolet Impala SS that was equipped with the 5.3 LS engine and a 4T65E transmission. The customer had a complaint of an erratic speedometer while driving. I began by collecting all the vehicle information for a check out sheet, such as VIN, mileage, engine and transmission type. After filling out the vehicle information section I set about to begin my diagnosis. First I checked codes and found the vehicle had no transmission or engine codes, but it did have a RF wheel speed sensor code, which did not seem likely to cause the problem, but I kept this in mind anyway. I was suspecting a possible output speed sensor issue or maybe even an instrument cluster issue.
  • TASC Force Tips: GM Gen. 2 6T70, 6T75 and 6T80
    Wednesday, May 1, 2019 12:00 AM

    GM Gen. 2 6T70, 6T75, 6T80

    Critical Wear Areas & Vacuum Test Locations

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Beyond the missions of providing education and reference materials, Transmission Digest serves as a prime resource used as shops find the parts, supplies and services necessary for successful and profitable operation. Nine of the 12 issues published each year are focused on the products, services and suppliers relating to a specific profit center within the retail shop.

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